13728140 has 24 divisors (see below), whose sum is σ = 28909440. Its totient is φ = 5475968.

The previous prime is 13728139. The next prime is 13728151. The reversal of 13728140 is 4182731.

13728140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8864 + ... + 10296.

It is an arithmetic number, because the mean of its divisors is an integer number (1204560).

Almost surely, 2^13728140 is an apocalyptic number.

13728140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13728140 is an abundant number, since it is smaller than the sum of its proper divisors (15181300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13728140 is a wasteful number, since it uses less digits than its factorization.

13728140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921 (or 1919 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 13728140 is about 3705.1504692792. The cubic root of 13728140 is about 239.4439674068.

The spelling of 13728140 in words is "thirteen million, seven hundred twenty-eight thousand, one hundred forty".